Most Hollywood starlets change their hairstyle with the same regularity as they change their underwear ...

Jennifer Aniston, on the other hand, found a look that worked for her about 10 years ago and since then she's stuck to her look with the tenacity of a pitbull clinging to a bail bondsman's leg.

Until now.

Ladies and ... ladies?

JEN HAS CHOPPED IT OFF.

(And lightened it.)

This is shocking news in the Aniston world and, I'm inclined to believe, another sign of End Times.

The question is ... how do you like her now?

The drastic new 'do occurred smack dab in the middle of her public appearances for Just Go With It, and I'm inclined to believe it was the result of a crisis of confidence on Jen's part. In fact, I think Ms. Aniston may have even been having an All About Eve moment that led to her haircut decision.

Perhaps Jen knew that chopping off her signature locks would put the spotlight right back where it oughta be -- ON HER.

While I don't think Jennifer looks bad at all and I think it's an excellent cut for moms to consider who don't want to spend too much time on their hair, it definitely makes Jennifer look a tad bit older -- and I know she doesn't want that. I'm betting she's going to let it grow right back out again. And that should take all of three months or so, right? I mean, she only cut off a few inches!